<template>
    <nav-bar>
      <div slot="left" class="back" @click="backClick">
        <img src="~assets/images/common/back.svg" alt="">
      </div>
      <div slot="center" class="title">
        <div v-for="(item,index) in titles"
             class="title-item"
             :class="{active: index === currentIndex}"
             @click="titleClick(index)">
          {{item}}
        </div>
      </div>
    </nav-bar>
</template>

<script>
    import NavBar from 'components/common/navbar/NavBar'
    export default {
        name: "DetailNavBar",
        components:{
          NavBar
        },
        data(){
          return{
            titles: ['商品','参数','评论','推荐'],
            currentIndex:0
          }
        },
        methods:{
          titleClick(index){
            this.currentIndex = index;
            this.$emit('titleClick',index)
          },
          backClick(){
            this.$router.push('/home')
          }
        }
    }
</script>

<style scoped>
.title{
  display: flex;
  font-size: 13px;
}
.title-item{
  flex: 1;
}
.active{
  color: var(--color-high-text);
}
.back{
  margin-top: 7px;
}
</style>
